Thank you Rob. Your advice is duly noted regarding mag. access during a complex failure where the mag needs to go to replace PDQ.
I have seen proof the G21 can endure torture of all kinds, and if the reason for the "gap" has a reason for mag. access, than that means something.
I spent a total of $12 for the plug with shipping. If it restricts access to the mag in case of "anything", than I'll leave it out.
Thanks again for your expertise and experience.
No matter how unlikely a mag. issue is, if it needs to come out, I want it out without fumbling...
I will do some weak hand and other snap cap drills when I get it via the big brown truck.. with and without the plug.
Being left handed, I probably stacked the deck already...
